[PLUG] I want to rewrite address bar and i use php

[Hemant Shinde]

hello sir,
            i want to rewrite address bar of browser so that user will
not able to
find in which page he is...
so that
i write .htaccess file

Options +FollowSymlinks
RewriteEngine on
RewriteRule ^(.*)\.htm$ $1.php [nc]


also enable httpd.conf file of apache on following path
D:\EasyPHP1-8\apache\conf

#LoadModule rewrite_module modules/mod_rewrite.so to LoadModule
rewrite_module modules/mod_rewrite.so
also
#AddModule mod_rewrite.c to
AddModule mod_rewrite.c

at first it show error 500 but after enableing this load module it
does'nt show error and not working ...

please tell me the solution...
i want to change or rewrite address bar...

thank  you...